Information Security Engineer - Classified Systems

Added 25/09/2026

We are seeking an Information Security Engineer to support the protection, operation, and continuous improvement of classified information systems. In this role, you will contribute to the secure design, implementation, assessment, and maintenance of systems operating in highly controlled environments. You will work closely with technical teams, system owners, security authorities, and operational stakeholders to ensure that security requirements are understood, implemented, and sustained throughout the system lifecycle. Key responsibilities include conducting security risk assessments, supporting accreditation and authorization activities, developing and maintaining security documentation, and monitoring compliance with applicable policies, standards, and regulatory requirements. You will assist with vulnerability...

Cyber Systems Security Engineering Associate Manager

Added 11/09/2026

We are seeking a Cyber Systems Security Engineering Associate Manager to support the design, development, integration and assurance of secure systems across complex technical programmes. This role will provide technical leadership to security engineering teams, ensuring that cyber risks are identified, assessed and managed throughout the system lifecycle. You will work closely with systems engineers, software developers, architects, programme managers and operational stakeholders to embed effective security controls from concept through deployment and ongoing support. Key responsibilities include leading security engineering activities; developing and reviewing system security architectures, requirements and technical specifications; conducting threat, vulnerability and risk assessments; and supporting...

Information Security Engineer

Added 04/09/2026

We are seeking an experienced Information Security Engineer to help protect critical systems, applications and data across a complex technology environment. In this role, you will support the design, implementation and continuous improvement of security controls, working closely with infrastructure, software development, cloud and operational teams. You will contribute to a strong security culture by identifying risks, recommending practical solutions and helping ensure that security is embedded throughout the technology lifecycle. Your responsibilities will include monitoring and investigating security events, supporting incident response activities and carrying out vulnerability assessments across networks, endpoints, applications and cloud services. You will help manage...

Lead DevSecOps Engineer

Added 08/10/2026

We are seeking a Lead DevSecOps Engineer to drive the integration of security, development and operations across the software delivery lifecycle. You will provide technical leadership for DevSecOps practices, helping engineering teams build, test, deploy and operate secure, reliable and scalable applications. Working closely with software engineers, architects, infrastructure specialists and security professionals, you will embed security controls and automation into every stage of delivery while promoting a culture of shared ownership and continuous improvement. Your responsibilities will include designing and evolving CI/CD pipelines, infrastructure-as-code, cloud platforms and automated security tooling. You will define and implement security controls for source...

Senior DevSecOps Engineer

Added 11/09/2026

We are seeking a Senior DevSecOps Engineer to help design, implement, and continuously improve secure, reliable, and scalable software delivery practices. In this role, you will work across development, operations, security, and architecture teams to embed security throughout the software development lifecycle and enable efficient, automated delivery of high-quality services. Your responsibilities will include designing and maintaining CI/CD pipelines, implementing infrastructure as code, and managing cloud-based environments across development, testing, and production. You will establish and improve security controls, including vulnerability scanning, secrets management, identity and access management, container security, and compliance monitoring. You will also support threat modelling, security...

Lead DevSecOps Engineer

Added 07/09/2026

We are seeking a Lead DevSecOps Engineer to drive the integration of security, development, and operations across the software delivery lifecycle. In this senior role, you will define and implement secure, scalable DevOps practices, while leading engineering teams in building reliable automation, infrastructure, and deployment solutions. You will champion a security-first culture and ensure that security is embedded from design through to production. Your responsibilities will include designing and maintaining CI/CD pipelines, implementing infrastructure as code, and improving cloud-based platforms for resilience, scalability, and performance. You will establish automated security controls, vulnerability management processes, secrets management, compliance checks, and continuous...

DevSecOps Engineer

Added 07/09/2026

We are seeking a skilled DevSecOps Engineer to help integrate security throughout the software development and delivery lifecycle. In this role, you will work closely with development, operations, infrastructure, and security teams to design, automate, and maintain reliable, secure, and scalable platforms. You will champion secure-by-design practices, improve engineering standards, and help teams deliver high-quality services efficiently. Your responsibilities will include building and maintaining CI/CD pipelines, embedding automated security checks into development workflows, and supporting infrastructure managed through code. You will configure and maintain cloud environments, container platforms, orchestration tools, monitoring solutions, and secrets-management systems. You will identify vulnerabilities, investigate...

GCAP Systems Security Engineer

Added 12/10/2026

We are seeking a Systems Security Engineer to support the design, implementation, and maintenance of secure, resilient technology environments. The successful candidate will work across infrastructure, applications, networks, and cloud services to identify security risks and develop practical solutions that protect systems, data, and users. This role will contribute to security architecture, system hardening, vulnerability management, incident response, and the continuous improvement of security controls throughout the technology lifecycle. Key responsibilities include assessing security requirements for new and existing systems; conducting threat, risk, and vulnerability assessments; developing and maintaining secure configuration standards; and supporting security testing, monitoring, and remediation activities....

Cyber Security & Systems Engineer

Added 08/10/2026

We are seeking a Cyber Security & Systems Engineer to help protect, maintain and continuously improve a diverse technology environment. This role combines cyber security operations, systems engineering and infrastructure support, offering the opportunity to work across cloud services, networks, endpoints, identity platforms and enterprise applications. You will contribute to the design and implementation of secure, resilient systems while helping to identify and reduce operational and security risks. Key responsibilities will include monitoring security alerts, investigating and responding to incidents, managing vulnerabilities and supporting threat detection and prevention activities. You will configure and maintain security controls such as endpoint protection,...

Security Systems Engineer

Added 24/09/2026

We are seeking a Security Systems Engineer to design, implement, maintain and improve integrated security technology across a range of sites and operational environments. The role will focus on ensuring that access control, CCTV, intruder detection, intercom, alarm monitoring and related systems are reliable, secure and aligned with business and regulatory requirements. You will work closely with internal stakeholders, suppliers, contractors and technical teams to deliver effective security solutions from initial assessment and specification through to installation, testing and ongoing support. Key responsibilities will include assessing existing security infrastructure, identifying vulnerabilities and recommending improvements; producing technical specifications, system designs, configuration...

Security Infrastructure Systems Engineer

Added 24/09/2026

We are seeking a Security Infrastructure Systems Engineer to design, implement, maintain and secure the platforms that support critical business services. You will work across infrastructure, cloud, networks and security operations to ensure systems are resilient, scalable and protected against evolving threats. The role involves collaborating with technical teams, service owners and stakeholders to translate security requirements into practical, reliable solutions. Your responsibilities will include administering and hardening Windows and Linux systems, virtualisation platforms, cloud services, identity and access management technologies, endpoint security tools and network security controls. You will develop and maintain secure configuration standards, monitor infrastructure for vulnerabilities...

Senior Systems Engineer - Application Security

Added 24/09/2026

We are seeking a Senior Systems Engineer – Application Security to strengthen the security, reliability, and performance of critical applications and supporting infrastructure. In this role, you will work closely with software engineering, platform, operations, and risk teams to embed security throughout the application lifecycle, from design and development through deployment and ongoing maintenance. You will provide technical leadership on secure architecture, systems hardening, vulnerability management, identity and access controls, and cloud security practices. Your responsibilities will include reviewing application and infrastructure designs, identifying security risks, and recommending practical, scalable improvements. You will develop and maintain security standards, controls, and...

AI Security Engineer (Agentic Systems)

Added 22/09/2026

We are seeking an AI Security Engineer (Agentic Systems) to help design, evaluate, and secure intelligent systems that can reason, plan, use tools, and operate with varying degrees of autonomy. In this role, you will work across security engineering, machine learning, and software development to identify emerging risks in agentic architectures and build practical safeguards. You will contribute to secure-by-design principles throughout the lifecycle, from research and prototyping through deployment, monitoring, and continuous improvement. Your responsibilities will include threat modelling AI agents, tool-use workflows, orchestration layers, memory systems, data pipelines, and model integrations. You will develop and execute adversarial tests...

Cyber Security Engineer - Cyber & Autonomous Systems Team

Added 18/09/2026

We are seeking a Cyber Security Engineer to join a specialist Cyber & Autonomous Systems team working on the security of advanced, software-enabled and autonomous capabilities. In this role, you will help protect complex systems throughout their lifecycle, from early concept and design through development, integration, testing, deployment and ongoing support. You will work closely with engineering, software, systems, operational and assurance teams to identify cyber risks and develop practical, proportionate security solutions. Your responsibilities will include conducting threat modelling, vulnerability assessments and security risk analyses; defining and reviewing security requirements; contributing to secure-by-design architectures; and supporting the implementation of...